Alert archive / Louisiana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 87, NWS Shreveport, LA

April 25, 2006Sabine Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 25, 2006, 10:19 PM CDT for Sabine Parish, Louisiana. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 25, 2006, 10:19 PM CDT (03:19 UTC)
Expired: Apr 25, 2006, 11:15 PM CDT
In force: 56 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Sabine Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 25, 9:42 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.3 hours before the alert went out and 164 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2353 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 758 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 25, 10:10 PM CDT, 9 minutes earlier.

Area forecast discussion, Apr 25, 10:10 PM CDT, 9 minutes before

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Hazardous weather outlook, Apr 25, 12:00 PM CDT, 10 hours 19 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT TUE APR 25 2006

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-261100-
ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE-
CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD-
HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION-
MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA-
PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX-
SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR-
WEBSTER-WINN-WOOD-
1200 PM CDT TUE APR 25 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST
TEXAS...SOUTHWEST ARKANSAS...NORTHWEST...AND NORTH CENTRAL LOUISIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

A COLD FRONT...ENTERING THE FOUR STATE AREA...WILL MOVE SOUTHEAST
THROUGH A MOIST...UNSTABLE AIRMASS...THIS AFTERNOON AND EVENING.
THIS FRONT...IN COMBINATION WITH THE TRAILING EDGE OF AN UPPER
LEVEL LOW PRESSURE SYSTEM...WILL CREATE THE CHANCE OF SCATTERED
SEVERE THUNDERSTORMS...MAINLY OVER EAST TEXAS...AND NORTH
LOUISIANA...THIS AFTERNOON AND EVENING. THE PRIMARY THREAT WILL
BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

THE ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM
SPOTTERS...MAY BE NEEDED THIS AFTERNOON AND EVENING.

03

In the hours before

Local storm report, Apr 25, 4:53 PM CDT, 5 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
453 PM CDT TUE APR 25 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     HAIL             TENAHA                  31.94N 94.24W
04/25/2006  E1.75 INCH       SHELBY             TX   STORM CHASER

&&

MBERRY

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 25, 8:47 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee	58 min
Apr 26, 2:17 AM CDT	Severe Thunderstorm Warning	SHV	Angelina	58 min
Apr 25, 10:53 PM CDT	Severe Thunderstorm Warning	SHV	Natchitoches	67 min
Apr 25, 11:00 PM CDT	Severe Thunderstorm Warning	SHV	Lincoln	45 min
Apr 26, 12:31 AM CDT	Severe Thunderstorm Warning	SHV	Jackson	44 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2006 Every severe thunderstorm warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.